57002644 has 12 divisors (see below), whose sum is σ = 102450964. Its totient is φ = 27730944.

The previous prime is 57002633. The next prime is 57002653. The reversal of 57002644 is 44620075.

57002644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 50951044 + 6051600 = 7138^2 + 2460^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192429 + ... + 192724.

Almost surely, 2^57002644 is an apocalyptic number.

It is an amenable number.

57002644 is a deficient number, since it is larger than the sum of its proper divisors (45448320).

57002644 is a wasteful number, since it uses less digits than its factorization.

57002644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385194 (or 385192 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 57002644 is about 7550.0095364178. The cubic root of 57002644 is about 384.8560635836.

The spelling of 57002644 in words is "fifty-seven million, two thousand, six hundred forty-four".